Home / 4,818-6,648.32-2,721.76

Finding the Fourth Proportional to 4,818, 6,648.32 and 2,721.76

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Solution

The fourth proportional to 4,818, 6,648.32 and 2,721.76 is: 3,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818 : 6,648.32 = 2,721.76 : x
  2. Step 2: Convert to fraction form
    4,818/6,648.32 = 2,721.76/x
  3. Step 3: Cross multiply
    4,818x = 6,648.32 × 2,721.76
  4. Step 4: Simplify right side
    4,818x = 18,095,131.44
  5. Step 5: Solve for x
    x = 18,095,131.44/4,818
  6. Step 6: Final answer
    x = 3,755.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.